Mathematical formula
From mispar
Roots
Addition of Roots

no such category found: #R+R

no such category found: #R+R

no such category found: #R+R

no such category found: #R+R

no such category found: #(N+R)+(N+R)

no such category found: #(N+R)+(R-N)

no such category found: #(N+R)+(R-N)

no such category found: #(N-R)+(R-N)

no such category found: #R+R+R+R
Subtraction of Roots

no such category found: #R-R

no such category found: #R-R

no such category found: #R-R

no such category found: #N-(N-R)

no such category found: #N-(N-R)

no such category found: #N-(N+R)

no such category found: #(N-R)-(N-R)
Multiplication of Roots

no such category found: #R×R

no such category found: #R×R

no such category found: #R×N

no such category found: #R×N

no such category found: #R×(R+N)

no such category found: #R×(N-R)

no such category found: #(N+R)×(N+R)

no such category found: #(N+R)×(N+R)

no such category found: #(N+R)×(N+R)

no such category found: #(N-R)×(N-R)

no such category found: #(N-R)×(N-R)

no such category found: #(N+R)×(N-R)

no such category found: #(N+R)×(N-R)

no such category found: #R×(R-N)

no such category found: #(R-N)×(R-N)

no such category found: #(R-N)×(R-N)

no such category found: #(R-N)×(R+N)

no such category found: #(R+N)×(R-N)

no such category found: #R×(R+R)

no such category found: #R×(R-R)

no such category found: #(R+R)×(R+R)

no such category found: #(R+R)×(R+R)

no such category found: #(R+R)×(R-R)

no such category found: #(R+R)×(R-R)

no such category found: #(R+R)×(R-R)

no such category found: #(R-R)×(R-R)

no such category found: #(R-R)×(R-R)

no such category found: #N×R
![\scriptstyle3\times\sqrt[3]{8}](/mediawiki/images/math/1/3/2/1328cc433a8d6f068d82010e6cd86a87.png)
no such category found: #N×R₃
![\scriptstyle\sqrt{4}\times\sqrt[3]{8}](/mediawiki/images/math/6/4/6/646c5ba2e5f167061f7a7ccea09fdf58.png)
no such category found: #R×R₃
![\scriptstyle\sqrt[3]{8}\times\sqrt[4]{16}](/mediawiki/images/math/b/e/2/be2421d68cb602563f762c6471b4910a.png)
no such category found: #R₃×R₄
Division of Roots

no such category found: #R÷R

no such category found: #R÷R

no such category found: #N÷R

no such category found: #N÷R

no such category found: #N÷(N+R)

no such category found: #N÷(N+R)

no such category found: #(N+R)÷N

no such category found: #N÷(N-R)

no such category found: #(N+R)÷(N+R)

no such category found: #N÷(R+R+R)

no such category found: #N÷(R+R+R+R)
Linear Equation
![\scriptstyle bx=\sqrt[3]{c}](/mediawiki/images/math/4/e/c/4eced3ba1c8f51bf47cf911659b6e201.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/linear equation | bx=³√c | ספר_ג'יבלי_אלמוקבאלא#NHZd | When things are equal to a cube root of the numbers:
:![]() |
![\scriptstyle c=\sqrt[3]{bx}](/mediawiki/images/math/5/b/4/5b40a2184fb3c6324ff5fe2eedb9da0b.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/linear equation | c=³√bx | ספר_ג'יבלי_אלמוקבאלא#jGFm | When numbers are equal to a cube root of a thing:
:![]() |
Quadratic Equation
ax²=bx
squares equal roots

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal roots | ax²=bx | חשבון_השטחים#bTgP | אלגוש ישוו שרשים |
simple canonical equation/squares equal roots | ax²=bx | תחבולות_המספר#Udbo | שרשים שיהיו שוי' למרובעים |
simple canonical equation/squares equal roots | ax²=bx | ספר_האלזיברא#XXXO | המרבעים שוים לדברים |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal roots | x²=5x | תחבולות_המספר#EqMy | For example: if you are told; five roots are equal to one square. How much is the square?
:![]() |
simple canonical equation/squares equal roots | x²=5x | חשבון_השטחים#cbxX | The squares that are equal to roots is as if you say: a square equals five roots.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal roots | ½x²=10x | תחבולות_המספר#fayj | Also, if he says: half a square is equal to ten roots.
:![]() |
simple canonical equation/squares equal roots | ½x²=10x | חשבון_השטחים#N1ie | Likewise, if it is said: half a square equals ten roots.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal roots | 5x²=20x | תחבולות_המספר#WDhU | Example: if one asks: five squares are equal to twenty roots.
:![]() |
simple canonical equation/squares equal roots | 5x²=20x | חשבון_השטחים#sJUh | As if you say: five squares equal twenty roots.
:![]() |
ax²=c
squares equal numbers

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal numbers | ax²=c | ספר_האלזיברא#jx5h | המרבעים צינסי שוים לאחדים |
simple canonical equation/squares equal numbers | ax²=c | חשבון_השטחים#kCXF | ואלאגוש ישוו מספרים |
simple canonical equation/squares equal numbers | ax²=c | תחבולות_המספר#4O9C | ומרובעי' שישוו למספרים |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal numbers | x²=16 | חשבון_השטחים#lI7w | The squares that are equal to numbers is as a square that equals sixteen.
:![]() |
simple canonical equation/squares equal numbers | x²=16 | תחבולות_המספר#fCC4 | As if you are told: the square is equal to sixteen.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal numbers | 5x²=45 | תחבולות_המספר#C4DX | If one says: five squares are equal to forty-five.
:![]() |
simple canonical equation/squares equal numbers | 5x²=45 | חשבון_השטחים#yMV8 | Likewise, when five squares are equal to forty-five.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/squares equal numbers | ⅓x²=27 | חשבון_השטחים#sOLH | Also if you say: a third of the square is equal to twenty-seven.
:![]() |
simple canonical equation/squares equal numbers | ⅓x²=27 | תחבולות_המספר#Usmi | If one says: a third of the square is equal to twenty-seven.
:![]() |
bx=c
roots equal numbers

Category | Comment | Link | Annotated text |
---|---|---|---|
simple canonical equation/roots equal numbers | bx=c | חשבון_השטחים#1nZH | ושרשים ישוו מספרים |
simple canonical equation/roots equal numbers | bx=c | תחבולות_המספר#qsBh | ושרשים שישוו למספרים |
simple canonical equation/roots equal numbers | bx=c | ספר_האלזיברא#uues | הדברים שוים לאחדים |
ax²+bx=c

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and roots equal numbers | ax²+bx=c | תחבולות_המספר#3sJZ | ושרשים ומרובעי' שישוו למספרים |
compound canonical equation/squares and roots equal numbers | ax²+bx=c | חשבון_השטחים#XqGp | מרובעי' ושרשי' ישוו למספרים |
compound canonical equation/squares and roots equal numbers | ax²+bx=c | ספר_האלזיברא#vJ0S | המרבעים והדברי' שוים לאחדים |

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and roots equal numbers | x²+10x=39 | תחבולות_המספר#oMPa | He said: when squares and roots are equal to numbers, it is as if you say: the sum of one square and ten of its roots together is equal to thirty-nine dirham.
:![]() |
compound canonical equation/squares and roots equal numbers | x²+10x=39 | ספר_המספר_/_אליהו_מזרחי#efjm | Question: if one asks: what is the square whose sum with ten times its root, for instance, yields thirty-nine.
:![]() |
compound canonical equation/squares and roots equal numbers | x²+10x=39 | חשבון_השטחים#BnUp | Squares and roots are equal to numbers, it is as if you say: a square and ten roots are equal to thirty-nine dirham.
:![]() |
compound canonical equation/squares and roots equal numbers | x²+10x=39 | ספר_ג'יבלי_אלמוקבאלא#jJWT | ![]() |
compound canonical equation/squares and roots equal numbers | x²+10x=39 | ספר_המספר_/_אליהו_מזרחי#5Cr3 | The example in the mentioned question: one square plus ten times its root are thirty-nine.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and roots equal numbers | 2x²+10x=48 | חשבון_השטחים#cSpR | ![]() |
ax²+c=bx

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and numbers equal roots | ax²+c=bx | חשבון_השטחים#iECf | ומרובעים ומספרי' ישוו לשרשים |
compound canonical equation/squares and numbers equal roots | ax²+c=bx | ספר_האלזיברא#oeK8 | המרובעים והאחדים שוים לדברים |
compound canonical equation/squares and numbers equal roots | ax²+c=bx | תחבולות_המספר#om8w | ומרובעי' ומספרי' שישוו לשרשים |

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and numbers equal roots | x²+21=10x | ספר_ג'יבלי_אלמוקבאלא#RpEs | You get one square and 21 numbers equal 10 things.
::![]() |
compound canonical equation/squares and numbers equal roots | x²+21=10x | תחבולות_המספר#u4EA | He said: squares and numbers that are equal to roots is as if you say: when you sum twenty-one dirham with a certain square, they are equal to ten roots of the square.
:![]() |
compound canonical equation/squares and numbers equal roots | x²+21=10x | ספר_המספר_/_אליהו_מזרחי#hfpC | Question: if one asks: what is the square whose sum with twenty-one, for instance, yields the same as ten times its root.
:![]() |
compound canonical equation/squares and numbers equal roots | x²+21=10x | חשבון_השטחים#yRRf | ![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/squares and numbers equal roots | x²+25=10x | תחבולות_המספר#QWm3 | Example: one says: a square plus twenty-five [dirham] are equal to ten roots of the square.
:![]() |
compound canonical equation/squares and numbers equal roots | x²+25=10x | חשבון_השטחים#5rN4 | ![]() |
bx+c=ax²

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/roots and numbers equal squares | bx+c=ax² | תחבולות_המספר#So10 | ושרשי' ומספרים שישוו למרובעים |
compound canonical equation/roots and numbers equal squares | bx+c=ax² | ספר_האלזיברא#zm1d | הדברים והאחדים שוים למרובעים |
compound canonical equation/roots and numbers equal squares | bx+c=ax² | חשבון_השטחים#VBed | ושרשים ומספרי' ישוו למרובעים |

Category | Comment | Link | Annotated text |
---|---|---|---|
compound canonical equation/roots and numbers equal squares | 3x+4=x² | חשבון_השטחים#qrpb | ![]() |
compound canonical equation/roots and numbers equal squares | 3x+4=x² | תחבולות_המספר#VKnl | He said: roots and numbers that are equal to a square is as saying three roots and four dirham are equal to a square.
:![]() |
compound canonical equation/roots and numbers equal squares | 3x+4=x² | ספר_ג'יבלי_אלמוקבאלא#GUT6 | For example, suppose that 3 things and 4 numbers are equal to 1 square.
::![]() |
compound canonical equation/roots and numbers equal squares | 3x+4=x² | ספר_המספר_/_אליהו_מזרחי#7D6K | Question: if one asks: what is the square such that 3 times its root plus 4 equals 10.
:![]() |
Compound Quadratic Equations
![\scriptstyle ax^2=\sqrt[3]{c}](/mediawiki/images/math/f/c/0/fc0033e1c190540235d4afbc47b31b11.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | ax²=³√c | ספר_ג'יבלי_אלמוקבאלא#rGD5 | When squares are equal to a cube root of the numbers:
:![]() |
![\scriptstyle c=\sqrt[3]{ax^2}](/mediawiki/images/math/f/7/6/f7617468fb35452327a7d2d5678e45f0.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | c=³√ax² | ספר_ג'יבלי_אלמוקבאלא#zK2y | When numbers are equal to a cube root of squares:
:![]() |
![\scriptstyle\left[x^2-\left(2\sqrt{x^2}+10\right)\right]^2=8x^2](/mediawiki/images/math/1/4/5/145c5c99f9bc23a17e6ee34a2c9df452.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [x²-(2√x²+10)]²=8x² | חשבון_השטחים#aPQX | If you are told: a square, subtract its two roots and ten dirham from it, then multiply what remains by itself; it becomes eight times the square.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | 2√(x²)+√(½x²)+√(⅓x²)=x² | חשבון_השטחים#nPTX | If you are told: a square whose two roots plus a root of half the square and a root of its third are equal to the square - how much is the square?
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | 2√(x²)+√(½x²)+√(⅓x²)=20 | חשבון_השטחים#wOZV | If one says: a square whose two roots plus a root of its half and a root of its third are twenty dirham - how much is the square?
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | x²+4√(x²)+√(½x²)+√(⅓x²)=10 | חשבון_השטחים#b04G | If you are told: a square, add to it its four roots plus a root of its half and a root of its third; it is ten dirham - how much is the square?
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [x²+√(x²)+√(½x²)]²=5x² | חשבון_השטחים#omoo | If you are told: a square, add to it its root and a root of its half, then multiply the result by itself; it is five times the square.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [x²+√(x²)+√(½x²)]²=20 | חשבון_השטחים#OX0E | ![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [x²+√(½x²)]²=4x² | חשבון_השטחים#Fvgh | If you are told: a square, you add to it a root of its half, then multiply the result by itself; it becomes four times the square.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | (x²+7)·√(3x²)=10x² | חשבון_השטחים#dAZJ | If you are told: a square, add to it seven dirham, then multiply the sum by a root of three times the square; it becomes ten times the square.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [x²+√(3x²)]·√(2x²)=4x² | חשבון_השטחים#lk6C | If you are told: a square, add to it a root of three times of it, then multiply the sum by a root of [twice] the square; it becomes four times the square.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | [√(½x²)+3]·[√(⅓x²)+2]=20 | חשבון_השטחים#Y7kO | If you are told: a square, add three dirham to a root of its half, and two dirham to a root of its third, then multiply one [sum] by the other; it is twenty dirham.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | (√10·x²)/(2√3)=x²-10 | חשבון_השטחים#8OnP | If you are told: a square, multiply it by the root of ten, then divide the product by two plus the root of three; the quotient is the same as the square minus ten.
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | √x²+√(√x²)+√(2√x²)+5√x²=10 | חשבון_השטחים#rWIe | If you are told: a square whose root and the root of its root, plus the root of its two roots, plus the root of five times the square are ten dirham.
:![]() |
quadratic equation in two variables

Category | Comment | Link | Annotated text |
---|---|---|---|
equation/quadratic equation | b²=3a², (a²+√a²)·(b²+√b²)=10b² | חשבון_השטחים#nHFm | If you are told: two squares - one is three times the other; you add to each of them its root, then multiply the one by the other; it is ten times the greater square.
:![]() |
Cubic Equation
![\scriptstyle ax^3=\sqrt[3]{c}](/mediawiki/images/math/a/6/4/a64e6eaeaf2d5f64610f741998d43d86.png)
Category | Comment | Link | Annotated text |
---|---|---|---|
equation/cubic equation | ax³=³√c | ספר_ג'יבלי_אלמוקבאלא#eOI5 | It is when cubes are equal to a cube root of the numbers:
:![]() |
Biquadratic Equation

Category | Comment | Link | Annotated text |
---|---|---|---|
quartic equation/biquadratic equation | 4(x²+8)=x⁴ | אגרת_המספר#q2Fw | 6) ![]() |
quartic equation/biquadratic equation | 4(x²+8)=x⁴ | תחבולות_המספר#G1Mq | [6] He said: the six problem is as if you are told: we add to a certain square [eight] dirham, then multiply the sum by four dirham and the result is the same as the product of the square [by itself].
:![]() |
quartic equation/biquadratic equation | 4(x²+8)=x⁴ | חשבון_השטחים#ZxMx | ![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
quartic equation/biquadratic equation | c=ax⁴+√(bx⁴) | ספר_ג'יבלי_אלמוקבאלא#h9il | When numbers are equal to squares of squares and a root of squares of squares:
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
quartic equation/biquadratic equation | ax⁴+bx²=c | ספר_ג'יבלי_אלמוקבאלא#Tu7N | When squares of squares plus squares are equal to a number:
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
quartic equation/biquadratic equation | bx²=ax⁴+c | ספר_ג'יבלי_אלמוקבאלא#tkSO | When squares are equal to squares of squares and a root of a number:
:![]() |

Category | Comment | Link | Annotated text |
---|---|---|---|
quartic equation/biquadratic equation | ax⁴=bx²+c | ספר_ג'יבלי_אלמוקבאלא#CLbn | When squares of squares are equal to a number and squares:
:![]() |